Question

【题目】_______ the morning train, he would not have been late for the meeting.

A. Did he catch B. should be catch

C. has he caught D. Had he caught

Answer 1

【答案】D

【解析】本题实际上是一个条件状语从句的虚拟语气，表示与过去事实相反。条件句中使用“过去完成式”，主句使用“情态动词+have done”；当条件句中的if省略的时候，要把had提前形成部分倒装。句义：如果他赶上了早班火车，他就不会开会迟到了。故D正确。